Good for bars & clubs, keeps the music at a comfortable listening level. Also fits well into the ear so it's not obvious that you're wearing earplugs. Very easy to clean. I have owned several pairs. They tend to wear out (stop sealing) after a couple months use.

They are as effective as rated, BUT for me they worked back out enough to allow a lot of sound leakage. For the few $$$, it's worth trying them. If they stay in for you, it's worth keeping your hearing.